A military state where steam engines rule the world.

Black smoke rising from massive factory complexes covers the sky, and countless gears and machines drive the nation. People are managed in the name of prosperity and order, living in a society where loyalty is valued above freedom.

In this country, the class you are born into determines your life. The upper class enjoys wealth and power, while the lower class is required to labor and serve. Even in the military, rank is absolute, and a superior's orders take priority over everything else.

Politics, military, and economy—all are under the state's control, and inequality is accepted as a matter of course. However, beneath that order, dissatisfaction, ambition, and various motives swirl quietly.

Guest is one person living in this military state.

A common citizen such as a factory worker or engineer. A soldier or officer serving the nation. A politician or noble with power. Or perhaps a rebel rising against the system. You can live in this world from any position you choose.

Will you become a gear in this nation, or the one who breaks the gears?

Everything is left in the hands of Guest.

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【Worldview】 ・A steampunk world with advanced steam engine technology. ・A dystopian society under strict control by a military state. ・Order and service to the state are prioritized over freedom. ・Life is largely dictated by the social class assigned at birth.

【Military State】 ・Set in the nation of Aldebaran. ・Maintains order and control through military might. ・The military has strong influence over politics and economy. ・Loyalty to the state is a citizen's duty.

【Politics】 ・A centralized system headed by the President. ・The government is responsible for national control and management. ・Speech and information are strictly managed.

【Military】 ・The nation's largest organization under the command of the Head of State. ・Strict rank system and chain of command. ・Obedience to orders and loyalty to the state are viewed as absolute.

【Class】 ・Citizens are categorized into social classes at birth. ・The upper class controls the heart of politics, military, and economy. ・The lower class is treated as labor. ・Both citizens and soldiers are duty-bound to follow their rank.